Ruby/sequel/mysql problem


#1

newbie here.

have ruby/sequel/sqlite and windows 2003 server working smooth.

but have problem with mysql

“gem install mysql”

run a basic ruby test script, got error popop

“this application has failed to start because LIBMYSQL.dll was not
found. Re-installing the application may fix the problem.”

Then copy LIBMYSQL.dll from my sql/bin to ruby/bin

this fixed the problem. Basic ruby / sql connection passed.

Then try to use sequel model with my sql code as following,

DB = Sequel.mysql(db_name, db_user, db_password, db_host, db_port)
class Test < Sequel::Model(:test)
end
tt = DB[“test”].filter(:key => ‘key’).first

got error:

C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/lib/sequel_core/
adapters/mysql.rb:149:in query': Mysql::Error Commands out of sync; you can't run this command now (Sequel::DatabaseError) from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/ lib/sequel_core/adapters/mysql.rb:149:in_execute’
from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/
lib/sequel_core/adapters/mysql.rb:108:in execute' from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/ lib/sequel_core/connection_pool.rb:109:inhold’
from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/
lib/sequel_core/database.rb:440:in synchronize' from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/ lib/sequel_core/adapters/mysql.rb:108:inexecute’
from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/
lib/sequel_core/dataset.rb:477:in execute' from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/ lib/sequel_core/adapters/mysql.rb:343:inexecute’
from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/
lib/sequel_core/adapters/mysql.rb:285:in fetch_rows' from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/ lib/sequel_core/dataset.rb:462:in_each’
from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/
lib/sequel_core/dataset.rb:213:in each' from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/ lib/sequel_core/dataset/convenience.rb:181:insingl
e_record’
from C:/dev-tools/ruby/lib/ruby/gems/1.8/gems/sequel-2.11.0/
lib/sequel_core/dataset/convenience.rb:52:in `first’
from main.rb:137

connection looks ok but error on the filter().first same code works
for sqlite.

Any idea?

Appreciate.
Sean


#2

Sean Sean wrote:

newbie here.

have ruby/sequel/sqlite and windows 2003 server working smooth.

See the sequel-talk thread:
http://groups.google.com/group/sequel-talk/browse_thread/thread/f0ab21612f3e1fa3